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Viewing changes to third_party/websockify/include/web-socket-js/src/flash-src/third-party/com/hurlant/crypto/symmetric/ECBMode.as

  • Committer: Package Import Robot
  • Author(s): Sylvestre Ledru
  • Date: 2014-01-19 14:12:40 UTC
  • mfrom: (4.1.2 sid)
  • Revision ID: package-import@ubuntu.com-20140119141240-nfiw0p8033oitpfz
Tags: 1.9.0~20140119~7dc8c2f-1
http://bugs.debian.org/733714
http://bugs.debian.org/735903
* New snapshot release (Closes: #733714)
* Provide sources for javascript and flash. Done in orig-tar.sh
  Available in third_party/websockify/include/web-socket-js/src/
  (Closes: #735903)

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third_party/websockify/include/web-socket-js/src/flash-src/third-party/com/hurlant/crypto/symmetric/ECBMode.as
 
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/**
 
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 * ECBMode
 
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 * 
 
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 * An ActionScript 3 implementation of the ECB confidentiality mode
 
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 * Copyright (c) 2007 Henri Torgemane
 
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 * 
 
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 * See LICENSE.txt for full license information.
 
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 */
 
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package com.hurlant.crypto.symmetric
 
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{
 
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        import flash.utils.ByteArray;
 
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        import com.hurlant.util.Memory;
 
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        import com.hurlant.util.Hex;
 
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        /**
 
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         * ECB mode.
 
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         * This uses a padding and a symmetric key.
 
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         * If no padding is given, PKCS#5 is used.
 
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         */
 
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        public class ECBMode implements IMode, ICipher
 
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        {
 
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                private var key:ISymmetricKey;
 
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                private var padding:IPad;
 
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                public function ECBMode(key:ISymmetricKey, padding:IPad = null) {
 
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                        this.key = key;
 
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                        if (padding == null) {
 
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                                padding = new PKCS5(key.getBlockSize());
 
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                        } else {
 
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                                padding.setBlockSize(key.getBlockSize());
 
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                        }
 
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                        this.padding = padding;
 
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                }
 
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                public function getBlockSize():uint {
 
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                        return key.getBlockSize();
 
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                }
 
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                public function encrypt(src:ByteArray):void {
 
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                        padding.pad(src);
 
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                        src.position = 0;
 
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                        var blockSize:uint = key.getBlockSize();
 
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                        var tmp:ByteArray = new ByteArray;
 
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                        var dst:ByteArray = new ByteArray;
 
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                        for (var i:uint=0;i<src.length;i+=blockSize) {
 
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                                tmp.length=0;
 
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                                src.readBytes(tmp, 0, blockSize);
 
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                                key.encrypt(tmp);
 
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                                dst.writeBytes(tmp);
 
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                        }
 
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                        src.length=0;
 
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                        src.writeBytes(dst);
 
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                }
 
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                public function decrypt(src:ByteArray):void {
 
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                        src.position = 0;
 
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                        var blockSize:uint = key.getBlockSize();
 
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                        // sanity check.
 
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                        if (src.length%blockSize!=0) {
 
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                                throw new Error("ECB mode cipher length must be a multiple of blocksize "+blockSize);
 
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                        }
 
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                        var tmp:ByteArray = new ByteArray;
 
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                        var dst:ByteArray = new ByteArray;
 
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                        for (var i:uint=0;i<src.length;i+=blockSize) {
 
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                                tmp.length=0;
 
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                                src.readBytes(tmp, 0, blockSize);
 
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                                key.decrypt(tmp);
 
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                                dst.writeBytes(tmp);
 
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                        }
 
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                        padding.unpad(dst);
 
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                        src.length=0;
 
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                        src.writeBytes(dst);
 
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                }
 
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                public function dispose():void {
 
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                        key.dispose();
 
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                        key = null;
 
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                        padding = null;
 
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                        Memory.gc();
 
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                }
 
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                public function toString():String {
 
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                        return key.toString()+"-ecb";
 
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                }
 
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        }
 
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}
 
 
b'\\ No newline at end of file'